herb for id mm1 16102011

[Mohina Macker]

very small flowers

no bigger than 3 or 4 mm

would very much appreciate an id

regards

mohina macker

[Nayan Singh]

Looks like Ludwigia octovalvis

Thanks

Nayan.

............................. 

N.S.Dungriyal IFS
Chief Conservator of Forests

From: Mohina Macker <mohina...@gmail.com>
To: efloraofindia <indian...@googlegroups.com>
Sent: Sunday, 16 October 2011 6:37 PM
Subject: [efloraofindia:88080] herb for id mm1 16102011

[Giby Kuriakose]

This is Ludwigia perennis of Onagraceae family. 

Regards,

Giby

--
GIBY KURIAKOSE PhD
Ashoka Trust for Research in Ecology and the Environment (ATREE),
Royal Enclave,
Jakkur Post, Srirampura
Bangalore- 560064
India
Phone - +91 9448714856 (Mobile)
visit my pictures @ http://www.flickr.com/photos/giby

[Mohina Macker]

Dear Giby ji and Nayan ji,

many thanks for the id

regards

mohina

[Satish Phadke]

It is interesting
Whether it is Ludwigia octovalvis or Ludwigia perennis? Only significant difference between the two what I noticed from the literature is that the small petiole is winged in L.perennis.
Mohina ji Can you check this in your plant as it is not appreciated in the given picture.
Otherwise the plant looks close to Ludwigia octovalvis to me
http://groups.google.com/group/indiantreepix/browse_thread/thread/2ea31303c443af06/a3f3b57a741cdbc4?hl=en&lnk=gst&q=ludwigia#a3f3b57a741cdbc4

--
Dr Satish Phadke

[Giby Kuriakose]

Dear Satish ji,

As per the key provided in this link (http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=119063) and the description and illustrations therein shows that the stem leaf margin of L. octovalvis is hairy and the same for L. perennis is glabrous. 

In this pictures, though it is not very clear, seems that the plant is glabrous.  

Mohima ji please check whether the plant is hairy or not. 

Regards,

Giby